Biological sciences

Isolation of key methanogens for global methane emission from rice paddy fields: A novel isolate affiliated with the clone cluster rice cluster I

Article Abstract:

The isolation of a methanogen strain SANAE belonging to an abundant and ubiquitous group of methanogens called rice cluster I (RC-I) is discussed. The findings suggest that RC-I methanogens are significantly enriched on receiving low concentrations of substrate (H2) continuously provided by heterotrophic H2-producing bacteria.

In situ detection, isolation, and physiological properties of a thin filamentous microorganism abundant in methanogenic granular sludges: a novel isolate affiliated with a clone cluster, the green non-sulfur bacteria, subdivision I

Article Abstract:

Researchers describe the isolation of a filamentous microorganism from thermophilic methanogenic sludge granules that is a sugar-fermenting bacterium dependent on the presence of hydrogen-utilizing methanogenic bacteria. It is a slow-growing bacterium that can only utilize a limited range of carbohydrates.

The enrichment, isolation, and partial characterization of phthalate isomer-degrading microbes under methanogenic conditions are reported. Under methanogenic conditions, phthalate degradation is thought to proceed by syntropic association between different tropic groups of anaerobes.